J off-diagonal effects in the hyperfine-structure splitting in the Eu I term e sup 6 D of 4 f sup 7 6 s 6 d

Journal Article · Fri Nov 01 00:00:00 EST 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.5737· OSTI ID:6094880

Kronfeldt, H; Weber, D ^[1]; Dembczynski, J; Stachowska, E ^[2]

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1. Optisches Institut der Technischen Universitaet Berlin, Strasse des 17. Juni 135, 1000 Berlin 12 (Germany)
2. Instytut Fizyki, Politechnika Poznanska ulica Piotrowo 3, 60-965 Poznan (Poland)

In the analysis of high-resolution Doppler-free two-photon hyperfine-structure (hfs) measurements of levels in the Eu I term {sup 6}D of the configuration 4{ital f}{sup 7}6{ital s}6{ital d} of {sup 151}Eu and {sup 153}Eu the necessity occurs to take into account also hfs perturbations. For the magnetic hfs interactions of {sup 151}Eu, the following off-diagonal matrix elements {sup 151}{ital A}{sub 1}({ital JJ}{prime}) could be determined from the high-resolved two-photon line profiles: {sup 151}{ital A}{sub 1}(1/2,3/2)=5.70(3) GHz, {sup 151}{ital A}{sub 1}(3/2,5/2)=4.3(2) GHz, {sup 151}{ital A}{sub 1}(5/2,7/2)=2.9(2) GHz, {sup 151}{ital A}{sub 1}(7/2,9/2)=2.2(2) GHz. The high quality of the calculations is represented both in the reproducibility of the absolute hfs level energies and also in the hfs anomaly where a mean value deduced from the corrected magnetic hfs constants of {minus}0.66(8)% can be stated.

• OSTI ID: 6094880
• Journal Information: Physical Review A. General Physics; (United States), Vol. 44:9, Issue 9; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
EUROPIUM
HYPERFINE STRUCTURE
EUROPIUM 151
ISOTOPE EFFECTS
EUROPIUM 153
ANGULAR MOMENTUM
FINE STRUCTURE
GROUND STATES
LEAST SQUARE FIT
MATRIX ELEMENTS
QUANTUM NUMBERS
ELEMENTS
ENERGY LEVELS
EUROPIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAXIMUM-LIKELIHOOD FIT
METALS
NUCLEI
NUMERICAL SOLUTION
ODD-EVEN NUCLEI
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RARE EARTHS
STABLE ISOTOPES
664200* - Spectra of Atoms & Molecules & their Interactions with Photons- (1992-)